Leak detection and location method of finned tube bundle of air cooler

Abstract

The invention relates to a leak detection and positioning method for air cooler fin tubes. The method comprises the steps of setting multiple ultrasonic sensor nodes in a fin tube area, wherein the multiple ultrasonic sensor nodes are arranged to form a wireless sensor network of multiple grids; determining a grid area according to the strength of ultrasonic signals acquired by the multiple ultrasonic sensor nodes to obtain a grid of a leak point; calculating a distance difference between the leak point and the ultrasonic sensor node in the grid of the leak point by adopting a TDOA delay estimation method, and obtaining the position of the leak point according to the geometrical relationship. By adopting the method, the ultrasonic detection principle and the wireless sensor network technology are combined together to realize detection of fin tube leak and accurate positioning of the leak point, and stable work of an air cooler is effectively guaranteed; and the method is convenient to apply and suitable for large-scale promotion and application, and has great significance for further promotion and application of the air cooler.

Description

technical field [0001] The invention relates to the technical field of detection of air coolers, in particular to the technical field of detection of finned tube bundles of air coolers, in particular to a leak detection and positioning method of finned tube bundles of air coolers. Background technique [0002] Air cooler, also known as air cooler, is a device that uses ambient air as the cooling medium and sweeps the outside of the finned tube bundle to cool or condense the high-temperature process fluid in the tube bundle. With the increasing use of induction heating equipment, due to the different conditions of users, some do not pay enough attention to the water cooling system of the equipment, and some users do not use distilled water according to the regulations, but use ordinary well water or tap water. In actual work The water quality has a great influence on the water cooling system and components of the equipment. Therefore, in the prior art, an air cooler is often ...

AI Technical Summary

Problems solved by technology

The working state of the finned tube bundle has a great influence on the working state of the entire air cooler. If the finned tube bundle leaks or other faults, it will greatly affect the working effect of the air cooler

[0004] However, in the prior art, there is no effective method for detecting the leakage of the finned tube bundle, nor can it realize the precise location of the leak point of the finned tube bundle, and cannot guarantee the continuous and effective operation of the air cooler

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